Improvement in plows



R. JONES.

Plow. w

Patented Feb. 10. 1863.

W WW% UNITED STATES- PATENT OFFICE.

ROBERT JONES, OF \VAYNESBURG, OHIO.

IMPROVEMENT lN PLOWS.

To all whom it may concern:

Be it known that 1, ROBERT JONES, of Waynesburg, in the county ofSta-rkand State of Ohio, have invented a new and Improved Plow; and 1 dohereby declare that the following is a full, clear, and exactdescription of the same, reference being bad to the accompanyingdrawings, making a part of this specification, in Which- Figure 1 is aside view of my invention; Fig. 2, a plan or top view of the same; Fig.3, an inverted plan of the same; Fig. 4, alongitudinal vertical sectionof a part of the same, taken in the line as .r, Fig. 2 Fig. 5,a-transverse section of a part of the same, taken in the line 3 y, Fig.1; Fig. 6, a diagram showing the manner in which the pattern for moldingthe moldboard is formed.

Similar letters of reference indicate corre sponding parts in theseveral figures.

This invention relates to anew and improved plow of that class which areprovided with mold-boards for turning a furrow-slice.

The invention consists in a novel and improved manner of attachingcertain parts of the plow togetherto wit, the mold-board to the shankand the beam to the shank, as hereinafter set forth, whereby themold-board may be readily detached, when necessary, and either acast-iron or steel mold-board used on one and the same plow, and thebeam rendered capable of being adjusted so that its front end may bemore or less elevated in a vertical plane, and also capable of beingadjusted laterally or in ahorizontal plane, for thepurpose ofregulatingthe direction of the draft and adapting the plow to one, two, or threehorses, as may be desired.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents the beam of the plow, B the shank, U the landside, D themold-board, and E the share. The moldboard D and share E may beconsidered as forming a continuous piece, and comprising a section orportion of a screw-thread or flange.

In order to explain clearly the form of the mold-board and share a planor diagram of the pattern is shown in Fig. 6.

Frepresents a wooden semi-cylinder, or what was originally asemi-cylinder, with a spiral section removed or cut out its entirelength,

leaving a curved surface, a, which forms a pertect spiral,'and willhave, when a straight-edge is applied to it transversely at right anglesto the axis of a cylinderof which F is apart, every point of its surfaceunderneath the straightedge in contact with it. In Fig. 6 the dottedlines I) are drawn to show the application of the straigh t-edge, whichmay be applied to any part of the surface a, between its two ends, withthe result above specified. After this spiral surface a is obtained thesuperfluous portions of the semi-cylinder F are cut away and the patternis formed by which themold is madefor casting. By having the mold-boardand share of this form the furrow-slice is cut and loosened and turnedwith the least possible degree of friction, and without breaking thesame, as the slice has a verygradual and easy turning movementcommunicated to it by the passage of the plow through the soil.

The shank B of the plow has a curved ledge or shoulder, b, at its upperpart, said shoulder being a part of a circle, as shown clearly in Fig.4. The back part, c, of the beam A is also ofcurved form correspondingto the curvature of the shoulder b, and the part c of the beam Aisplaced on the shoulder bofthe shank, and secured thereto by two bolts,(1 d, as shown in Fig. at, said bolts passing through oblonglongitudinal slots 0 e in the beam A. By this method of attaching thebeam to the shank the former may be moved on the shoulder 11, andadjusted thereto more or less forward or backward, and as the shoulder bis a portion of a circle, and the back part, c, of the beam of the sameform, it will be seen that by thus adjusting the beam its front end maybe more or less elevated and the direction of the draft regulated as maybe desired. (See Fig. 1, in which an elevated adjustment of the beam isshown in red outline.) The bolt 61 passes entirely through the upperpart of the shank B, and through an oblong transverse slot, f, therein,as shown clearly in Fig. 5. mits of the beam A being adjusted laterally,so that its front end may be more or less to the right or left. (SeeFig. 2, in which a right-hand adjustment of the beam is shown in redoutline.) By this adjustment the plow may have more or less land givenit and the beam adapted for the attachment of one, two, or three horses,as may be desired.

The inner side of the shank B is cast or This slot f adformed with aflange, g, which projects down below its lower edge, and has an arm, h,at its front end, which is provided with projections or ears 1' i, theeari being at the upper end of the arm and the ear t at the lower orrear side. (See Fig. 3.)

The landside O is secured to the shank B by a bolt, j, which passesthrough the flange g, and the mold-board D is secured to the shank by abolt, k, passing through the projection or cart and the share E by abolt passing through the ear 2". By this arrangement or means themold-board D may be readily attached to and detached from the plow. Thisis an important feature, as it admits of either a steel or cast-ironmold-board being applied to one and the same plow. In fact any of theparts-to Wit,themold-board,shank,landside,orshare-- may be readilydetached and new ones substituted when necessary.

The handles G G may be of the usual form, and are connected to the shankand mold-board as shown in Fig. 2.

Having thus described my invention, the

following is what I claim as new therein and desire to secure by LettersPatent:

1. While disclaiming the general principle of effecting the vertical orhorizontal adjust-V ment of the beam by means of bolt and slotattachments, I claim the particular combination of thecurved inner end,0, of the beam A,

ROBERT JONES.

Witnesses:

I. N. Ross, J. F. MAY.

